Headline

Full Stack Engineer (React + TypeScript + Node.js) | TanStack , Redux , Express | E-Signature & Document Platforms | REST APIs , MongoDB | Performance Optimization | Scalable SaaS Applications

About

Full Stack Engineer with 1.5 years of production experience building end-to-end SaaS applications using React, TypeScript, Node.js, and Express. I specialize in document-heavy platforms — PDF editors, rich text systems, and multi-step signing workflows — where both the UI and the backend infrastructure are equally critical. At Orotron, I worked on e-signature platform across the entire stack: a browser-based multi-page PDF editor with drag-and-drop field placement, a rich document editor with 16+ custom EditorJS plugins, RESTful APIs for document handling and signing workflows, secure authentication with JWT, RBAC, and 2FA, and a workflow engine supporting approval chains, audit trails, and bulk operations. I optimized frontend performance using Web Workers and IndexedDB, and contributed to a modular backend architecture aligned with microservices principles. I care about building systems that are reliable, performant, and maintainable —,clean component architecture on the frontend, well-structured APIs on the backend, and data models that scale.

Location

Ongole

AI stack

antigravity

claude code

codex

gemini

lovable

Work experience

Software Engineer at Orotron, Nov 2024 - Mar 2026 · 1 yr 5 mos, Bengaluru, At Orotron, I build and maintain scalable full stack features for a production-grade document workflow and e-signature platform. On the frontend, I develop complex UI systems including drag-and-drop PDF editors, rich text editing interfaces, and browser-based document rendering pipelines that handle PDF generation, watermarking, and DOCX parsing directly in the browser. On the backend, I design and integrate RESTful APIs using Node.js and Express.js for document handling, user management, and signing workflows, and contribute to a modular backend architecture aligned with microservices principles. I optimize performance using Web Workers with Comlink and IndexedDB for client-side caching to handle large documents without blocking the UI. I also implement secure authentication and authorization systems including JWT, refresh tokens, RBAC, and OTP-based two-factor authentication, and design reusable component architectures with Redux and TanStack Query across the stack.

MERN stack developer at NullClass, Jul 2023 - Sep 2023 · 3 mos, Bengaluru, During my internship at NullClass, I developed full-stack web applications using the MERN stack (MongoDB, Express, React, Node.js), building responsive and interactive user interfaces with React, HTML, CSS, and JavaScript. I integrated frontend components with REST APIs and managed application state for dynamic UI behavior. Throughout the projects, I also followed Git-based version control workflows, collaborating with team members and maintaining organized code during the development process.

Campus Growth Manager at prepinsta at PrepInsta, Feb 2023 - Apr 2023 · 3 mos, Remote, As a Campus Growth Manager at PrepInsta, I promoted PrepInsta programs within the university by engaging with students and creating awareness about technical training opportunities. I organized student engagement initiatives, coordinated workshops, and conducted onboarding sessions to encourage participation in skill development programs and help students get started with technical learning resources.

Education

Bachelor of Technology, Computer Science, RAJIV GANDHI UNIVERSITY OF KNOWLEDGE TECHNOLOGIES, ONGOLE

Pre-University Course, RAJIV GANDHI UNIVERSITY OF KNOWLEDGE TECHNOLOGIES, ONGOLE

Public links

mahesh-kumar-portfolio.vercel.app: https://mahesh-kumar-portfolio.vercel.app/